53448448 has 36 divisors (see below), whose sum is σ = 107211888. Its totient is φ = 26593280.

The previous prime is 53448443. The next prime is 53448449. The reversal of 53448448 is 84484435.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53448448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53448443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71565 + ... + 72307.

It is an arithmetic number, because the mean of its divisors is an integer number (2978108).

Almost surely, 2^53448448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53448448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53605944).

53448448 is an abundant number, since it is smaller than the sum of its proper divisors (53763440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53448448 is an equidigital number, since it uses as much as digits as its factorization.

53448448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1026 counting only the distinct ones).

The product of its digits is 245760, while the sum is 40.

The square root of 53448448 is about 7310.8445476566. The cubic root of 53448448 is about 376.6850345634.

The spelling of 53448448 in words is "fifty-three million, four hundred forty-eight thousand, four hundred forty-eight".